Sabrina's engine, a Westerbeke 40 HP diesel, was originally installed in 1975. The Westerbeke is the same (renamed) engine as the Perkins. Despite the fact Sabrina's engine has been well taken care for and regularly serviced, this model engine is notorious for having a leaking rear main seal. With more long distance cruising and commercial chartering on the horizon, a reliable engine is a necessity. In order to repair the rear main seal, the boat has to be pulled (put on the hard), and the engine removed. If the old engine is removed it doesn't make sense to put it back without completely rebuilding it. Comparatively, purchasing a factory rebuilt engine versus having the existing engine rebuilt by a local mechanic is the better course of action.

The Foley's Not Your Father's 4-108 Perkins Diesel engine incorporates four major upgrades that make this old reliable engine a great choice for today's replacement engine. We are excited about the new upgrades and hope to have as many years of service with the new engine as we had with the engine being replaced.


Foley Engines
Published on Foley Engines (http://www.foleyengines.com)
Not Your Father's Perkins 4108; Bringing the Perkins 4108 into the 21st Century

Great tips on breathing new life into your Perkins 4108 engine - Tech Tip #126

This Tech Tip, one in a series we publish on Perkins diesel engines, discusses the various upgrades that go into our Not Your Father's Perkins 4108 Engine. The Perkins 4107/4108 engine, also known as the Westerbeke 40, made its North American debut roughly 50 years ago at the 1960 New York Boat Show. Because of its rugged and quiet cast iron design, relatively low revving operation and low cost replacement parts, the Perkins 4108 engine has been widely adopted with thousands still in use.

But time marches on. A lot of things have changed with small marine diesels since then, some good, some not so good. While more recent engines from other manufacturers may say they offer more modern features, they are lighter in weight, are often turbocharged and have to rev higher to get the same power. As a result they are noisier and more expensive to maintain. Has anyone priced out a turbo for a Yanmar recently?

This Tech Tip is written for those who appreciate their Perkins 4108 but want to incorporate sensible, cost effective modern updates. While we offer this series of upgrades in one package as a dyno-tested, factory remanufactured engine called Not Your Father's 4108, you could purchase the upgrades separately, one at a time.

Read more
http://www.foleyengines.com/resources/tech-tips/not-your-fathers-perkins-4108-bringing-perkins-4108-21st-century

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Foley Marine & Industrial Engines, Inc.
Engine Distributors since 1916!
200 Summer Street, Worcester, MA 01604

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